Method of attaching soles of boots or shoes or securing together layers of material.



No. 721,016. A PATENTBD FEB. 17, 1903.

i L. A. GASGRAIN- METHOD OT ATTAOHING SOLES OF BOOTS OR SHOES ORSEOURING TOGETHER LAYERS OF MATERIAL.

APPLICATION FILED JAH. '7, 1901.

UNITED STATES PATENT OFFICE.

LOUIS A. CASGRAIN, OF WINCHESTER, MASSACHUSETTS, ASSIGNOR TO UNITEDSHOE-MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF NEWJERSEY.

METHOD OF ATTACHING SOLES OF BOOTS OR SHOES 0R SECURING TOGETHER LAYERS0F MATERIAL.

SPECIFICATION forming part of Letters Patent N o. 721,016, datedFebruary 17, 1903.

Original application filed May 25, 1900, Serial No. 17,939. l Dividedand this application iiled January 7', 1901. Serial No. 42,37@ (Nomodel.)

To ctZZ whom, t muy concern:

Be it known that I, Louis A. CASGRAIN', a citizen of the United States,residing at Winchester, in the county of Middlesex and State ofMassachusetts, have invented a Method of Attaching Soles of Boots orShoes or Securing Together Layers of Material, of Which the followingdescription, in connection with the accompanying drawings, is aspecification, like characters on the drawings representing like parts.

This invention consists in an improved method of securing togetherlayers of material. The method is especially adapted for securing theouter soles of boots or shoes to their inner soles, andit is thatspecific application of the invention which is shown in the drawings. Inapplying this method I employ my novel metallic fastening known as thedouble-clench' fastening. This fastening is shown in Letters Patent ofthe United States No. 669,025, granted February 26, 1901. As therein`shown, the fastening comprises a shank or body with a clenching-pointand a hook-shaped head having a depending point.

In my experiments to find a satisfactory method of securing togetherlayers of material, and particularly a method applicable to theattaching of the outer soles of shoes with metallic fastenings, I foundthat I could secure great holding power combined with a large degree ofexibility in the stock by means of fastenings having when inserted inthe material hook-shaped ends entering opposite sides of the materialand a single strand of Wire connecting said hook-shaped ends. I furtherdiscovered that the most practical method of uniting layers of materialin this ing its sole attached by my improved method,

-the shoe being partially broken out to show some of the insertedfastenings. Fig. 2 is a cross-section of the shoe represented in Fig. 1,showing the fastenings inserted in a channel in the outer sole, the lipat one side of the shoe being in place to cover the heads of thefastenings, the lip on the other side being opened. Fig. 3 is anenlarged View of the fasteningbefore itis inserted in the stock. Figs. 4and 5 show my improved method as applied to the shank and fore part ofthe sole, respectively, and these figures also illustrate the generalapplication of my improved method of uniting layers of material of anykind.

Referring to the drawings, s represents the upper of a shoe; s', theouter sole; s3, the inner sole, and 82a tap or slip-sole. The outer soleyis represented as provided with a channel formed by cutting into thesole, leaving the lip s4.

The novel fastening Which I employ in applying my novel method iscomposed of a shank or body g, having a clenching-point 23X and having ahook-shaped head g5, with a point g2 depending from the head.

In applying my novel method to attaching the outer sole of a shoe theshank of the fastening g6 is rst forced into the outer sole. In thelatter part of the movement of the shank into the stock the point g2,depending from the head, enters and is'forcedinto the outer sole,embracing between itself and the shank Q6 a portion of the outer sole.While the depending point g2 of thehe'ad is entering the stock theclenching-point 23X of the shank emerges from the inner sole and isturned backwardly into the inner sole, a portion of the inner sole beingembraced between the inturned point and the shank of the fastening.

This I have found to be the most practical method of attaching the outersoles of boots and shoes or securing together layers of material of anykind by means of fastenings which when they are inserted in the stockconsist each of a hook-shaped end entering the outer sole or layer and ahook-shaped end entering the inner sole or 1ayer,with a single strand ofWire connecting said hook-shaped ends.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. The method of securing together layers of material which consists ininserting through said layers the shank or body of a fastening having ahook-shaped head with a depending point, forcing said depending pointinto one side of the stock and inturning or clenching the point of saidshank or body into the other side of said stock, whereby the layers ofmaterial are secured together by a fastening having hook-shaped endsentering opposite sides of the material with a single strand of Vwireconnecting said hook-shaped ends.

2. The method of attaching the outer soles of boots or shoes to their`inner soles which consists in inserting into the outer sole a fasteninghaving a shank and a hook -shaped head with a depending point, forcingthe point of the shank through the outer sole and inner sole, forcingsaid depending point of the head into the outer sole and clenching orturning back into the inner sole the point of the shank, whereby theouter sole is attached by a fastening having hook-shaped ends enteringopposite sides of the material with a single strand of wire connectingsaid hookshaped ends.

3. The method` of attaching outer soles of boots or shoes to their innersoles, which consists in inserting into the outer sole a fasteninghaving a shank and a hook-shaped head with a depending point, forcingthe point of.

LOUIS A. CASGRAIN.

Witnesses:

GEO. W. GREGORY, NELSON W. HOWARD.

